Resultados de la búsqueda
-
ANALYSIS OF ICE-FISH (CHAMPSOCEPHALUS GUNNARI) SPATIAL DISTRIBUTION FOR OPTIMIZATION OF THE BOTTOM TRAWL SURVEY SAMPLING
Abstract: The spatial distribution characteristics of ice-fish in the near-bottom layer are ... analyzed using the acoustic data obtained in the South Georgia area during the Russian bottom trawl surveys ... 2002. Acoustic and trawl density samples obtained in the near-bottom layer covered by trawl survey are ... horizontal and vertical fish distribution in the near-bottom layer of the survey area is shown. Influence of ...
Meeting Document : SG-ASAM-09/07 : Autor(es): S. Kasatkina (Russia)
-
Fish as diet of the blue-eyed shag, Phalacrocorax atriceps bransfieldensis at Half-Moon Island, South Shetland Islands
Abstract: Thirty eight regurgitated casts collected in a colony at Half-moon Island, South ... Shetland Islands, during January and February 1993, were analyzed to determine the importance of fish in ... means of otoliths found in the casts. The size and weight of the fish were estimated from the otolith ... lengths, using equations derived from data on local populations. Fish remains were present in all casts ...
Meeting Document : WG-CEMP-94/32 : Autor(es): E.R. Barrera-Oro and R.J. Casaux (Argentina)
-
Influence of krill availability on humpback whale breeding success
Abstract: The abundance of the Antarctic krill (Euphausia superba) has been declining in the ... in the sea surface temperature observed in the region. Thus, the performance (reproduction and ... survival) of the krill consumers may be compromised. In the present study, we investigated the reproductive ... success of humpback whales (Megaptera novaeangliae) from Breeding Stock G in relation to krill density ...
Meeting Document : WG-EMM-18/P15 : Autor(es): E. Seyboth, F. Félix, M.-A. Lea, L. Dalla Rosa, G. Watters, K. Reid and E. Secchi
-
REPORT OF THE SECOND MEETING OF THE SEABIRD BYCATCH WORKING GROUP, HERMANUS, SOUTH AFRICA, 17-18 AUGUST 2008
Abstract: The Fouth Meeting of the ACAP’s Advisory Committee was held in Cape Town, South Africa ... methods to reduce seabird bycatch in trawl fisheries, and noted that the body of work investigating and ... documenting mitigation measures in trawl fisheries is significantly less advanced than for longline fisheries ... . Consequently, new developments in this field in recent years are few. Seabird interactions with trawl vessels ...
Meeting Document : WG-FSA-08/61 : Autor(es): ACAP Seabird Bycatch Working Group
-
Update of the integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands (Division 58.5.2)
uncertainty about annual estimates but given this caveat they are useful in tracking observed and CASAL ... -estimated trends in catch rates. A change of substantial consequence from the 2009 integrated assessment was ... . Neither of these values of M was estimated in CASAL but the value of 0.155 was estimated externally to ... CASAL from catch-at-age and aged mark-recapture data as described in Candy et al. (2011). The ...
Meeting Document : WG-FSA-11/24 : Autor(es): S.G. Candy and D.C. Welsford (Australia)
-
Marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1994/95
associated with seabirds in the same way as in 1993/1994. In 1994/1995 there was a decrease in both the ... , the decrease is due at least in part to, first, fewer birds examined than last year as a consequence ... of the very low breeding numbers of mollymawks at Bird Island in 1994/1995 and, second, because the ...
Meeting Document : SC-CAMLR-XIV/BG/09 : Autor(es): Delegation of the United Kingdom
-
The integrated krill assessment model for Subarea 48.1 with future catches meeting alternative decision rules
Abstract: Model results and diagnostics for the integrated assessment model for krill in Subarea ... described. The model and procedures outlined in this paper synthesize work reported to CCAMLR WG-EMM, WG-SAM ... , and WG-FSA in a number of papers since 2011. The assessment model for krill in Subarea 48.1 is offered ... as a tool for CCAMLR to use in managing the krill fishery in Subarea 48.1. Author(s): D. Kinzey, G.M ...
Meeting Document : WG-SAM-16/36 Rev. 1 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss
-
Seabird warp-strike research design
Abstract: The paper documents a protocol for assessing warp strike occurrence for seabirds in ... trawl fisheries, and sets out the sampling plan, forms and protocols used to sample warp strikes in the ... southern squid fishery in 2005 in New Zealand. Results of this sampling are set out in Abraham (unpublished ...
Meeting Document : WG-FSA-05/41 : Autor(es): A. Kennedy (New Zealand)
-
A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ... candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ... sector modelled are considered, and their performance in response to a variety of ways in which the ...
Meeting Document : WS-KCPUE-89/04 : Autor(es): D.S. Butterworth (South Africa)
-
A simulation study of krill fishing by an individual JAPANESE trawler
commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ... candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ... sector modelled are considered, and their performance in response to a variety of ways in which the ...
Meeting Document : SC-CAMLR-VII/BG/37 : Autor(es): D.S. Butterworth (Invited Expert)